Polymer-based dental restorative materials are designed to polymerize in situ. However, the conversion of methacrylate monomer to polymer is never complete, and leakage of the monomer occurs. It has been shown that these monomers are toxic in vitro; hence concerns regarding exposure of patients and dental personnel have been raised.
Debonding of cemented bone implants is regarded as a major contributor to complications. The relationship between shear bond strength and surface roughness has been investigated, however there are inconsistencies in the trends reported in different studies.
The study was performed to assess the risk of at-home and in-office bleaching procedures, and to recognise potential predictors for side effects.
Bleaching treatment, irrespective of method, caused a high prevalence of side effects
The purpose of this study was to compare the flexure strength of zirconium dioxide materials designed for different sintering techniques before and after surface exposure to an acidic solution and to correlate the dissolution of the materials with strength data.
Determination of fracture strength of different all-ceramic dental crown systems is not straight forward. Most in vitrotest methods induce contact damage at the loading point (crunch the crown-tests). Clinical failures, on the other hand, usually originate from cracks in the cervical margins. The aim of this study was to compare three all-ceramic systems using a test method that mimic clinical failure modes.
A naturally occurring photosensitizer Curcumin (Cur) has already shown good in vitro bacterial phototoxicity.¹ ²1,2 However,low aqueous solubility and poor photolytic and hydrolytic stability limit the therapeutic application of Cur in antibacterial photodynamic therapy (aPDT). The concept of supersaturation was explored for enhancing the photodynamic effect of Cur. A supersaturated solution of Cur has already demonstrated […]